Identify factors that contributed to the outbreak of war between indians and white settlers

It was mainly because the white settlers took alot of Indians land

The white settlers began expanding west onto land that was owned by Indian tribes, and settlers and cattle ranchers pushed the Indians out of their homelands. This caused the Indians to defend their lands and started an outbreak of wars between them.

Primary sources are usually  more accurate and are written by someone who experienced it or witnessed it. secondary sources are those who heard of it after the fact that can lose details and or twist the event in a light that benefits them.